40231189 has 4 divisors (see below), whose sum is σ = 42348640. Its totient is φ = 38113740.

The previous prime is 40231183. The next prime is 40231199. The reversal of 40231189 is 98113204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40231189 - 2⁵ = 40231157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058697 + ... + 1058734.

It is an arithmetic number, because the mean of its divisors is an integer number (10587160).

Almost surely, 2^40231189 is an apocalyptic number.

It is an amenable number.

40231189 is a deficient number, since it is larger than the sum of its proper divisors (2117451).

40231189 is a wasteful number, since it uses less digits than its factorization.

40231189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117450.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 40231189 is about 6342.8060824843. The cubic root of 40231189 is about 342.6528033970.

The spelling of 40231189 in words is "forty million, two hundred thirty-one thousand, one hundred eighty-nine".